A more interesting question, to me, is looking at a corpus of essays and analyzing how writing has changed with the introduction of LLMs. We can look at changes in vocabulary, linguistic features, style embeddings, regular embeddings, typos, errors, and references over time. When looked at in this way it is clear that academic writing has changed at the population level but what has led the change is harder to track down.

Edit: same for any profession that requires professional accreditation: lawyers, doctors, cpas, professional engineers, etc.

This is important because it lets pluralities build from people who are not aware they are being manipulated. Pluralities can lead to majorities and majorities, in a democratic system, create power. All this to say: I don't think those who have fallen for propaganda are living in a world they are satisfied with but instead that they are living in a world they've been told they are satisfied with and a lack of counter narratives have not shown them a better way. Consider that propaganda gets busted out whenever something isn't naturally popular or beneficial to most people, that is why we see propaganda most used around military efforts.